Lock nut



Aug. 10, 1943- w. SHIPPEE ET AL LOCK NUI Filed Aug. 23, 1940 Cal-I Clapp shlbpec Wl'nsor Ship nee BY INVENTOR ATTORZEY This invention relates to reel; teem has for its principal object to provide a locknut whichvi s Q l V V f'LocKnpr Winsorf shippee j Application Aug-eats, r9403 sen-aim; 35st eese (Cl; isiiiflfi f1 'inexpensiveto make, easilyapplied to abolt and jis efifective' injsecurely-holding inplace'under conditions of severe vibration;

Another object of the invention is to .provrdea. lock nut which may be stampedout' of sheet metal.

I Still. another object'of the invention isto p ov- .vide albck nut which may be applied to abolt t Y with eitherlside towardslthehead of'thel bolt so n that it cannot be appliedincorrectlv Another object of theinvention is to provide a lock nut which will slip easily over a bolt and will automatically grasp the bolt whenit strikes thesurface of the object to be scuredsoi-that' t e bolt may be tightened,thus pulling the nut down v "against the object. V

" M Fig. 1 is afplan Other objectsof thelinvention will in pa rt' bex Y 20 The invention accordingly comprisesan article obvious and-will in part appear hereinafter;

of manufacturepossessing the featuresprop'er- I i tiesand .the relation of elements which-will be exemplified in the article hereinafter described;

and the scope of the application of which will' Y be indicated in the claims.

For a fuller understanding offthenatureand objects of the invention reference'should be. had

which:

invention shown applied to a bolt;

- 7 Fig.2 is a side elevational view of the lock nut of, Fig. 1 shown slipped over the boltwithout g "-lactual engagementtherewith; I I Fig 'is a sectional side jelevational View .of l the samey lojck .nut shown in tight locking en-' gagement with the bolt; 7 V V j 7 Figs. 4;, 5, and 6 are similar views of another embodiment of the invention;

Figs. 'L;8,and 9 are similar viewsof still another embodiment of the invention; and v ligs. 10, 11, and l2 aresimilar viewsof; still 1 another embodiment of-the inventionh; 1

The lock nut illustrated-inFigsl, 2, and 3 is a preferred embodiment of the invention and comprises a rectangular plate 15 having a 'hole 16in Y 7 the center thereof which is large enough in diameter to just clear the crestof theboltwith' which the lock nut is intended to be;used,fso as I to permit slipping the lock nut over the bolt with-- out interfering with the threads .there,of. One U end. H of the plate [5 isbent outwardly from the a central portion through an angle which is slightviewef one emer en 9f the to the following detailed description takenjn:

connection with the accompanying drawing, in

lniost sheetinetale-rnember; @When the'jend 13 of I i plate will move towards "the members 1 to be se-.-

flit-is Dentintheoppositedirection;at substana -7 tially the 'sameangle with respect to-thefcentral portion of -the plate, soithat the two ends I7 and l i lBiar'e substantiallyparallel. gWe preferably pro- 7 {'vrde reinforcingflidges'fl'fi and-fil ladjacent ope 3 I 'posite edges of the hole 16 torprevent substantial I di$tOI tiOn Of the materiel when the lock'nut is' in usej and these fridges mayLe formed by, the r'nanner.of bending'theends l7 and lSQjII'hus', 'theendsmay be given reverse :bends, the end l'l,f 1 v: @for instance, starting in'ohe direction from the hichi t is to tensed; and we preferfto make it. of metal; which is substantially'as tough as the; "boltwith which itisltobeu sed. Low carbon steel:' f has been found satisfactorj'lffor ordinaryfsteel pen ing; m1 jther natureio'f the to 'which the' lock nut and'bolt assemblyis put; The locknnt may even be made of. plasticmater-ial forcertain' I metal member the wholelock nut begins to tilt, 40"

1y-reate than} inte tine-white the btherend plate 15 an then doubling back upon itself to" exten outwardly fromthe pl'ate-inthqt positer, V dire" ny' 'I'fheflsamellfthing is true offth'e end.

" this'enjd is'bent ih'just' the opposite.

directionfrom' the end IL V 'lheplatef fi ma'ybe ma'd offsheet material of? a,'thic1:' hesscorrespo'ndingyto the distance leep tweenf two adjacentthreadsoffthe bolt upon,

olts. .Howevenotherzrnaterial'mav beuse'd' detypes .of lightwork In ordertoillustr ate the use ofjthej lo ck a b 1 hasbeenshownfiorsecuringtwo pieces of 1 sheet metaliitogeth'er. 'T h'e. bolt is-jin'serted r throughsuitable-openings in the" sheet metal; {.1 l members with the headZiipf the bolt against thev 1 e tmetal an t e 09 tis thenslip d over the bolt, as indicated;- until it engages the outer- 7 the loclgnut; plate strikes the outer mo'st sheet and asthelangle ot zthe center portionphanges, 1 v h espf thehole;lfijadjacent the ridges I19 and 2&1 heginto engage the threadsof the bolt.

The holtis now rotated "in'jthe' direction oftight- H v ,ening it; and b'ecause the edges of the hole [B are in engagement 'with the, threads, the whole cured, as shownin Fig. 3.;"Ihe ridger-vlfiis; also I pulleddowniagainst thesheet metal member'ZZf together with the Wedge of thefend l8, the-latter} uthebolt shank i 'rhishot only :causes ;a:secure It, but'atl theisametime a gripping of: the sheet me m b l yihenr de eedib hele b j ted frme he s i n w ri m 3 ripping 9ithetmeadslby;the;edges of the we 'ff of'the end [8.

the 'forc'esacting on the bp1t are less; The k'ielt;- h e f be nfides: Wii hzlih? f f previous embcdiment, because of the feet that the the edgeswhich engagetthea and . to provide these ridges inr close proximity to-the'g' hole Hg, as close as possible without the ridges;

themselves engaging the threads of the bolt. 7

' In Figs; 4, 5, and 6, a modified fdrm of the in;

- venticn isi'shpvyii in wh ch adfick gnqt 2'-is-$en;1egseginged-withthe edgetoitheepd 3.5gjeg h a member'as tvel-l as"the edges bf the sides 36 and 3! 1 and the cornei of the end 38. Thus, the lock tions at an angle tofth'ecentral portion an d' a' 'j central hole 28, but without the ridges proyigepl in the lock nutlalready described gich a 15 The lock rn' its what similartothe lck nutf5 df Figsi; 2 and 3, having ends. 26 and Z1 7 bent in, opposite diie'gnut may be 'used with IightentyQeWbIR- W eremetal maydistert owing'to a lack e f=-si1pp0rt agt' e hjoltfjThis I It'will be noted that the 1atera1 ridges [,9 f 20;,act to support the metal adjacent the hole [6 -and'prevent theedges of the hole from bein'gfdisl ftoi'ted and "from tearing out when they engage. the threads of the bolt. I We prefer, therefore;

' 7 over the boitwithout engaging the thieadsthere 1 i sheet metal member which is intended-t0 be held :bythebolt, the anglelfqf the lock nut is changed vand the edges of the' jhcle adjacent the ends of the lock nut engage thethieads or the bolt simi- 1 larly; to the embodiments already" described.

Upon tightening theholt: the lock nut is then brought down tightly against the m'ember to be e nut is prevented from turning and holdsthe parts ecurelytogether. v V a s g i of all of the. embodiments descFib djabevarenbt intended to be used a seceext s ort h case are at suchujan angle 5; .v" lav d cp ntact he t is' ldesiredto n pith? lock nut nte'place and .e n i h s a it t egaiiist' turning m 40 invention 'cquid' be lnade'withent"departingfrom intended""that; all matter v f g'giitaii ed n -theiabeve description-or shown in V in; drawihg shall be interpreted bn'd timeysince the first: use will tend to 'distort' J "lpckinut especially Where the ed @spf the hole engage in thethreads, so that r thellqckinut I is iI Ei sg 5; 3,

21 b t'wit ii e A *f-l-Iowtig iiwi h an Jocliiafterthe ichanges made in ithe iusftia ye andpetdnalirnitingsense.

is alsg te he: i in derstqed-that "the fellowing 'areintended t eoveif ali- -ef -the generic -"'-34:-in-the center-thereof and-{ ne-end35"-bent at 55*thiqkness substantially equal td the-distance be-.

adjacent said hole soas t preVent substantial upon; itself: aiidf then exteridir'i'g int thejother di- --'-reeti qn-* 'io'i predetem ihed distance i from said IateQtHe theP enddfgsaid plate-'also having a the mater al ex tending outwardly from isaid gene w and'desi 'e to sec reby Letters Patent is: t 1-; A=-1ockfii1itj0r a threadedbblt'eemprising a sn bstantially fiatiplate 'ofsheet mateiial-haviiig a thei ethrough with a; dia 'r' etei s'lig-htly large'rthan -s'aid pl'ate being -bentfi'inpne dire'ction andthe rectiong ai d ridges in a the inateisiah of said plate ever'se hend therein but in--the eppesite direc- 2;s2e,'2e1 H a ,7 V I the center thereof with a diameter slightly larg er plate in the opposite direotion' from said first end and then doubling back on itself and exterial of said plate from distorting whensaid lock nut is muse 3;-A lock'nut for a threaded bolt comprising *plate of sheet material having'a thickness subs stantially equal to the distance between two adjacent threads on said bolt and having a hole in tending in the other direction fora predetermined distance, whereby reinforcing ridges are'formed :atopposite edges of said hole to prevent the ma than the crest diameter 'ofi the said bo1t,"said Q p1ate-having opposite ends thereof eurved out-zfj.

wardly in opposite directions away iromsaid J plate,pwhereby when said lock nut is slipped over f J '1 I Y r a bolt one of said curved ends will engage the ob: 1}" I "ject t0 be secured and alter the angle .of said,

plate so as toc'ause 'the edges of saidhole to en gagethethreadsof saidbolt, 1 t a WINSORSHIPPEE. CARL C." 

